Twilio Changelog | Sep. 21, 2023
Voice IP Migration Schedule Update
UPDATED MIGRATION SCHEDULE: On 23 January 2024 Twilio will be updating the media IPs and port ranges for SIP and Voice SDK calls in all regions to 168.86.128.0/18 and expanding the UDP port range to 10000-60000. Old IP and port ranges will no longer accept or send traffic after this date. Before this new migration date, we'll perform two days of testing with limited traffic, impacting Flex, SIP, and Voice SDK calls using the old IP and port ranges. Learn more.
Based on your feedback, we’re extending the Twilio Voice IP migration timeline from October 10, 2023, to a new 100% traffic migration date of January 23, 2024.
Before this new migration date, we’ll perform two days of testing with limited traffic:
- December 5, 2023: 1% of all calls will use the new range for 24 hours
- January 16, 2024: 20% of all calls will use the new range for 24 hours
We won’t migrate traffic on the previously communicated dates of September 26, October 5, or October 10, 2023. For more information, see our docs.
NOTE: Customers using Twilio Interconnect for Elastic SIP Trunking, Flex, Programmable SIP, SIPREC, or Voice SDKs calls are being migrated in a separate migration with a different timeline as communicated here.